BTW INR18650-26EC 18650 Li-ion Battery 3.7V 9.62Wh 2600mAh – Flat Top (Single Cell)

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BTW INR18650-26EC 18650 Li-ion Battery 3.7V 9.62Wh 2600mAh – Flat Top (Single Cell) The BTW INR18650-26EC 18650 Li-ion Battery 3.7V 9.62Wh 2600mAh is a cylindrical lithium-ion rechargeable cell engineered for reliable energy delivery across a wide range of professional and industrial applications. This model is officially marked INR18650-26EC , rated at 3.7V nominal voltage , 9.62Wh energy , and 2600mAh capacity , supplied as one single individual cell with a flat-top terminal design . This specification is confirmed exactly as follows: ✔ Brand: BTW ✔ Model: INR18650-26EC ✔ Capacity: 2600mAh ✔ Energy: 9.62Wh ✔ Nominal Voltage: 3.7V ✔ Format: 18650 cylindrical cell ✔ Configuration: Single Piece (1 Cell) ✔ Terminal Type: Flat Top Product Identity & Classification The BTW INR18650-26EC belongs to the INR chemistry category , which designates lithium nickel manganese cobalt oxide composition (Li-Ni-Mn-Co). This chemistry is widely adopted in modern energy systems due to its balance between: ⚡ Stable energy density 🔋 Reliable discharge characteristics ♻️ Rechargeable lifecycle performance 🛡 Controlled thermal behavior The 18650 form factor refers to the standardized cylindrical dimension: Diameter ≈ 18mm Length ≈ 65mm This geometry makes it compatible with battery holders, modular packs, and industrial assemblies designed for 18650 cells. Core Electrical Specifications Parameter Value Brand BTW Model INR18650-26EC Battery Type Lithium-ion (INR) Nominal Voltage 3.7V Energy Rating 9.62Wh Nominal Capacity 2600mAh Maximum Charge Voltage 4.2V ± 0.05V Discharge Cut-Off Voltage 2.5V Internal Resistance ≤ 13mΩ Approximate Weight 46g ± 0.5g Terminal Type Flat Top Unit Configuration Single Cell Capacity & Energy Output The 2600mAh capacity ensures stable current supply for medium-demand devices. The 9.62Wh energy rating reflects real usable stored energy based on nominal voltage and capacity. Energy calculation reference: 3.7V × 2.6Ah ≈ 9.62Wh This provides a balanced profile suitable for: 🔧 Power tool battery rebuilding 🚲 Electric mobility packs 🔌 Backup energy systems 🔋 Consumer electronics battery replacement Internal Resistance Performance With a declared internal resistance ≤ 13mΩ , this cell is optimized for: Efficient current delivery Reduced heat generation under load Improved voltage stability Better pack balancing consistency Low internal resistance is critical in applications requiring steady current draw such as: Electric scooters E-bikes Power systems UPS assemblies Charging & Discharging Parameters Charging Maximum charge voltage: 4.2V ± 0.05V Standard charging temperature: 0°C to 55°C Discharging Discharge cut-off voltage: 2.5V Operating discharge temperature: -20°C to 60°C Storage Recommended storage temperature: 20°C to 45°C These parameters ensure safe integration into BMS-controlled systems. Physical Construction The BTW INR18650-26EC features: 🟣 Cylindrical steel housing ➕ Clearly marked polarity indicators 🧾 Laser-printed model code & batch trace 📦 Industrial bulk packaging compatibility The flat-top configuration allows: Spot-welding tab installation Direct holder mounting Modular pack integration Application Scope The BTW INR18650-26EC 2600mAh cell is suitable for: 🔧 Electric power tools 🛴 Electric scooters 🚲 Electric bikes 🏠 Home appliances 🧑‍💻 Consumer electronics ⚡ Uninterruptible power supplies (UPS) 🌞 Solar energy storage systems 🚗 Four-wheel electric vehicles 🏌 Golf carts 🌱 Electric lawn mowers ♿ Electric wheelchairs 🚜 Electric forklifts 🎮 Electric toy cars 🏭 Industrial battery systems Safety & Handling Guidelines Use only with compatible Li-ion chargers (4.2V termination) Always integrate with a Battery Management System (BMS) in multi-cell packs Do not short circuit Do not puncture or crush Do not overcharge above 4.2V Do not discharge below 2.5V Store in moderate temperature conditions Packaging Configuration This listing includes: 📦 1 Piece – BTW INR18650-26EC 2600mAh Flat Top Cell Performance Stability & Engineering Value The BTW INR18650-26EC 18650 Li-ion Battery 3.7V 9.62Wh 2600mAh is engineered to provide consistent discharge behavior under standard and medium-load operational environments. With a nominal voltage of 3.7V and a controlled discharge cut-off at 2.5V, the cell maintains voltage stability across its operating curve. Key electrical advantages include: ⚡ Stable nominal voltage output for regulated systems 🔋 Balanced 2600mAh capacity for multi-cell pack configuration 🔧 Suitable for serial and parallel assembly 🛡 Low internal resistance ≤ 13mΩ for reduced voltage sag ♻️ Rechargeable lithium-ion chemistry (INR type) The flat-top design ensures seamless compatibility with: Battery holders Spot-welded tab assemblies Modular lithium packs Laptop battery rebuilding configurations Thermal Operating Profile The cell is specified for: 🔥 Charging temperature: 0°C to 55°C ❄ Discharge temperature: -20°C to 60°C 📦 Storage temperature: 20°C to 45°C These defined ranges allow integration into controlled energy systems and BMS-regulated applications. Proper ventilation and pack engineering remain essential for optimal safety and lifecycle preservation. Mechanical Characteristics 🔵 Cylindrical 18650 format ⚙ Steel can housing ➕ Flat positive terminal ➖ Standard negative base ⚖ Approximate weight: 46g ± 0.5g 📏 Standard 18650 dimension class (≈18mm × 65mm) The robust casing protects internal lithium-ion layers from mechanical stress during assembly and pack integration. Electrical System Integration The BTW INR18650-26EC 2600mAh 9.62Wh cell integrates effectively into: 🔋 2S, 3S, 4S lithium battery packs ⚡ 12V, 24V, 36V system architectures 🔌 Portable backup systems 🛠 Industrial tool battery rebuilds 🌞 Solar storage arrays 🚲 E-mobility modules Each configuration must include proper: BMS protection Cell balancing Overcurrent control Thermal management Use Case Engineering Categories The 2600mAh capacity positions this model for: Consumer Applications 🔦 Flashlights 💻 Laptop battery rebuild 🎮 Portable electronics 🧰 DIY battery packs Mobility Applications 🛴 Electric scooters 🚲 E-bikes ♿ Electric wheelchairs 🏎 Electric toy vehicles Industrial & Power Systems 🔋 UPS systems 🌞 Solar storage systems 🏗 Electric forklifts 🌱 Electric lawn mowers 🏌 Golf carts ⚡ Electric vehicle submodules Compliance & Identification The product marking confirms: BTW branding INR18650-26EC model code 3.7V nominal voltage 9.62Wh energy 2600mAh capacity Individual serial trace marking This ensures authenticity verification and batch tracking in commercial or industrial purchases. Included in This Listing 📦 Quantity: 1 Piece Only 🔋 Model: BTW INR18650-26EC ⚡ Capacity: 2600mAh 🔌 Energy: 9.62Wh 🔋 Voltage: 3.7V 🔘 Terminal: Flat Top Not included: Protection board Tabs Charger BMS Multi-pack assembly بطارية BTW INR18650-26EC ليثيوم أيون 18650 – 3.7V 9.62Wh 2600mAh فلات توب (قطعة واحدة) بطارية BTW INR18650-26EC هي خلية ليثيوم أيون أسطوانية قياس 18650 بسعة مؤكدة 2600mAh وطاقة 9.62Wh وجهد اسمي 3.7 فولت ، تصميم طرف موجب فلات (Flat Top)، وتباع كقطعة واحدة منفردة . المواصفات المؤكدة: العلامة التجارية: BTW الموديل: INR18650-26EC السعة: 2600mAh الطاقة: 9.62Wh الجهد الاسمي: 3.7V الشكل: 18650 أسطواني النوع: Li-ion (INR) التكوين: قطعة واحدة المواصفات الكهربائية البند القيمة السعة الاسمية 2600mAh الجهد الاسمي 3.7V أقصى جهد شحن 4.2V ± 0.05V جهد فصل التفريغ 2.5V المقاومة الداخلية ≤ 13mΩ الوزن التقريبي 46 جم ± 0.5 جم درجات الحرارة حرارة الشحن: 0° حتى 55° م حرارة التفريغ: -20° حتى 60° م حرارة التخزين: 20° حتى 45° م التصميم والبنية هيكل فولاذي أسطواني طرف موجب فلات طباعة موديل ورقم تتبع مناسب للحام بالنقاط أو حوامل البطاريات الاستخدامات أدوات كهربائية دراجات كهربائية سكوترات كهربائية أنظمة UPS تخزين طاقة شمسية كراسي متحركة كهربائية سيارات ألعاب كهربائية جزازات عشب كهربائية عربات جولف أنظمة طاقة صناعية تعليمات السلامة استخدام شاحن ليثيوم 4.2V فقط لا يتم الشحن فوق 4.2V لا يتم التفريغ تحت 2.5V استخدام BMS عند تجميع أكثر من خلية عدم التعريض للحرارة الزائدة أو الثقب محتويات العبوة 📦 قطعة واحدة فقط من 🔋 BTW INR18650-26EC ⚡ 2600mAh 🔌 9.62Wh 🔘 Flat Top BTW, 18650, INR18650-26EC, 2600mAh, 9.62Wh, 3.7V, lithium battery, flat top, li-ion cell, rechargeable battery, BTW 18650 2600mAh,BTW INR18650-26EC 9.62Wh BTW 3.7V Lithium Cell INR18650-26EC 2600mAh 18650 Flat Top BTW BTW Laptop Battery Cell 2600mAh BTW 18650 Industrial Lithium Cell BTW 18650 9.62Wh Rechargeable BTW 3.7V 18650 Li-ion Battery BTW Lithium Cylindrical 18650

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